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From user Douglas Desrochers. The barrels appear to be PVC. They rotate around a piece of 1/2″ copper pipe, and a high-intensity LED is positioned to shine down the top one, strobing as the barrels spin. The whole thing is driven by the motor and battery pack from a cheap cordless drill. Let the Predator jokes commence.

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Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I write for MAKE, serve as Technical Editor for MAKE magazine, and develop original DIY content for Make: Projects.


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